- JSONPath Execution: Ajson executes JSONPath expressions on JSON objects, allowing users to query and extract specific data from the JSON structure. JSONPath expressions are similar to XPath expressions used for XML data. They provide a flexible and powerful way to navigate through JSON objects and locate desired data elements.
- Data Extraction: Ajson enables users to extract specific data elements or properties from JSON objects using JSONPath expressions. This allows for targeted retrieval of information, filtering out irrelevant data, and obtaining only the desired data elements.
- Querying Nested Structures: JSONPath expressions supported by Ajson can handle nested JSON structures, allowing users to traverse through complex hierarchies of objects and arrays. This capability enables the extraction of data deeply nested within the JSON structure.
- Filtering and Conditional Extraction: Ajson supports filtering and conditional extraction of data using JSONPath expressions. Users can specify conditions and criteria to selectively retrieve data based on specific values, patterns, or comparisons.
- Expressive Syntax: Ajson employs a concise and expressive syntax for JSONPath expressions. It provides a set of operators, functions, and patterns that can be used to navigate through JSON objects and perform various operations, such as filtering, sorting, and grouping.
- Integration with Command Line: Ajson is designed to be used via the command line, making it easy to incorporate into scripts, automation workflows, or other command-line operations. Users can execute Ajson commands with the specified JSONPath expressions and retrieve the desired data directly from the command line.
- JSONPath Libraries Compatibility: Ajson is compatible with various JSONPath libraries and implementations, ensuring consistency in JSONPath syntax and functionality across different platforms and programming languages. This compatibility allows users to use Ajson in conjunction with other tools and libraries that support JSONPath.
- Community Support: Ajson benefits from an active community of users and developers who contribute to its development, provide support, and share knowledge. Users can access community resources, documentation, and examples to learn more about using Ajson effectively and efficiently.
Ajson simplifies the process of executing JSONPath expressions and extracting data from JSON objects. It provides a versatile tool for working with JSON data and retrieving specific information based on user-defined criteria.
ajson Command Examples
1. Read JSON from a file and execute a specified JSONPath expression:
# ajson '$..json[?(@.path)]' /path/to/file.json
2. Read JSON from stdin and execute a specified JSONPath expression:
# cat path/to/file.json | ajson '$..json[?(@.path)]'
3. Read JSON from a URL and evaluate a specified JSONPath expression:
# ajson 'avg($..price)' 'https://example.com/api/'
4. Read some simple JSON and calculate a value:
# echo '3' | ajson '2 * pi * $'